Calculate the planar densities of atoms in the following cases: Draw the exact atomic arrangements...

Calculate the planar densities of atoms in the following cases:

Draw the exact atomic arrangements in each case and put down the dimensions.

Cu FCC 100 110 111 r (Å) = 1.267

Al FCC 100 110 111 1.432

Au FCC 100 110 111 1.442

Ba BCC 100 110 111 2.176

Fe BCC 100 110 111 1.241

Nb BCC 100 110 111 1.426

Expert Solution

comment any doubt ok.

genius_generous answered 1 year ago

Materials Engineering a) Compare planar densities in terms of atoms per area in terms of a,...

Materials Engineering a) Compare planar densities in terms of atoms per area in terms of a, the lattice parameter for the (100), (110), and (111) planes for FCC. Which is the closest packed (densest) plane or FCC? b) Compare planar densities in terms of atoms per area for the (100), (110), and (111) planes for BCC. Which is the closest packed (densest) plane for BCC?

Express the maximum planar densities of the following Unit Cells (to 3 sig figs): a) Simple...

Express the maximum planar densities of the following Unit Cells (to 3 sig figs): a) Simple Cubic (SC) Unit Cell w/ equal sized atoms b) Body Centered Cubic (BCC) Unit Cell w/ equal sized atoms c) Face Centered Cubic (FCC) Unit Cell w/ equal sized atoms

Calculate the proportion of atoms on the surface atomic layer of Ag spheres with the diameters...

Calculate the proportion of atoms on the surface atomic layer of Ag spheres with the diameters below given that the thickness of the surface atomic shell is 0.289 nm, stating any assumptions made. (a) 1 μm (b) 10 nm (c) 5 nm please explane in detail ,

calculate the number of atoms in 100.0g of mercury: Part 3: Average Mass: Atomic Mass =...

calculate the number of atoms in 100.0g of mercury: Part 3: Average Mass: Atomic Mass = (0.1687 X 198.968254) + (0.2310 X 199.968300) + (0.1318 X 200.970277) + (0.2986 X 201.970617) = 166.35 amu Isotope: 199Hg, 198.968254 amu, 16.87 % abundance Isotope: 200Hg, 199.968300 amu, 23.10 % abundance Isotope: 201Hg, 200.970277 amu, 13.18 % abundance Isotope: 202Hg, 201.970617 amu, 29.86 % abundance Part 4: Use the average mass calculated in Part 3 to calculate the number of atoms in 100.0g...

Draw a planar structure for the following compound using dashed or solid wedges to show the...

Draw a planar structure for the following compound using dashed or solid wedges to show the stereochemistry of the substituent groups. To be graded properly, include the hydrogen atoms on the chirality centers (asymmetric carbons). Given cyclohexane in a chair conformation, substitute two of the H labels with methyl and tert-butyl to construct the more stable conformation of trans-1-tert-butyl-3-methylcyclohexane. Use the numbering provided on the ring.

According to Dalton's atomic theory, all of the following are true besides: A) All atoms of...

According to Dalton's atomic theory, all of the following are true besides: A) All atoms of an element have the same chemical properties B) Chemical combing of elements to form compounds involves the bonding together of different whole atoms C) Atoms change the kind of atom they are during chemical reactions D) New substances are produced in chemical reactions by the rearrangement of atoms According to the octet rule, many atoms will react with each other and form compounds so...

A nucleus has atomic mass of 144. In which of the following cases could the nucleus...

A nucleus has atomic mass of 144. In which of the following cases could the nucleus be stable? A) The nucleus may be stable if it has between 73 and 83 protons. B) The nucleus may be stable if it has between 144 and 288 protons. C) The nucleus may be stable if it has between 83 and 144 protons D) The nucleus may be stable if it has more than 288 protons E) None of the the cases described...

Draw the distribution of d electrons for the central atoms in the following molecules using crystal...

Draw the distribution of d electrons for the central atoms in the following molecules using crystal field theory. K3[Cr(C2O4)3] 3H2O (octahedral) K2[Cu(C2O4)2] 2H2O (tertrahedral)

In each of the following cases, draw the supply and demand curves for the market indicated....

In each of the following cases, draw the supply and demand curves for the market indicated. Your drawings need not be perfectly to scale. After that, please show how the event indicated would affect the supply and/or demand curves. Clearly indicate the new and old equilibrium prices and quantities. In one sentence please explain your reasoning. Market: Bicycles Event: Gasoline prices rise to $6.00 per gallon Market: Bicycles Event: Your university trustees vote to establish automobile parking fees of $1.00...

1. In each of the following cases, draw the supply and demand curves for the market...

1. In each of the following cases, draw the supply and demand curves for the market indicated. Your drawings need not be perfectly to scale. After that, please show how the event indicated would affect the supply and/or demand curves. Clearly indicate the new and old equilibrium prices and quantities. In one sentence please explain your reasoning. A) Market: Bicycles Event: Gasoline prices rise to $6.00 per gallon B) Market: Bicycles Event: Your university trustees vote to establish automobile parking...

Question